.howto{position:relative;background:url(../img/howto_bg.png) no-repeat top center/100%}.howto video{position:absolute;width:min(calc(710 / 800 * 100vw),710px);height:min(calc(410 / 800 * 100vw),410px);top:min(calc(55 / 800 * 100vw),55px);left:50%;transform:translateX(-50%);object-fit:cover}.howto_point::before{content:"";display:block;position:absolute;top:min(calc(123 / 800 * 100vw),123px);left:min(calc(26 / 800 * 100vw),26px);width:min(calc(180 / 800 * 100vw),180px);height:min(calc(711 / 800 * 100vw),711px);background:url(../img/howto_point.png) no-repeat top center/100%}.howto_pop{width:min(calc(400 / 800 * 100vw),400px);position:absolute;top:0;left:50%;transform:translateX(-50%);z-index:2}